Valley phase transition of a Si inversion layer in high magnetic fields

Ute Gummich and L. J. Sham
Phys. Rev. B 26, 5611 – Published 15 November 1982
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Abstract

The change of valley degeneracy in a Si(111) inversion layer due to the intravalley exchange and correlation at high magnetic fields is mapped out as a function of the density and of the strength of the interaction compared with the impurity scattering. The calculated magnetoconductivity is used to explain the observed splitting of the last Landau level in the Shubnikov-de Haas measurements.

  • Received 1 June 1982

DOI:https://doi.org/10.1103/PhysRevB.26.5611

©1982 American Physical Society

Authors & Affiliations

Ute Gummich* and L. J. Sham

  • Department of Physics, University of California, San Diego, La Jolla, California 92093

  • *Permanent address: Institut für Theoretische Physik, Universität zu Köln, D-5000 Köln, Federal Republic of Germany.

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Vol. 26, Iss. 10 — 15 November 1982

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